The number of errors in a textbook follow a poisson distribution with a mean of 0.02 errors per page. what is the probability that there are 3 or less errors in 100 pages?

0.8571

Step-by-step explanation:

Poisson distribution formula:

 , where x=0,1,2,3... is a poisson variable , = Mean of the distribution .

Let x be the number of errors in a textbook that follow a Poisson distribution with a mean of 0.02 errors per page.

For 100 pages ,

Now , the probability that there are 3 or less errors in 100 pages will be :-

Hence, the probability that there are 3 or less errors in 100 pages = 0.8571

answer: integers are just whole numbers: positive, negative, and zero.

i = {-∞, -2, -1, 0, 1, 2, 3, ∞}

let x = 1st integer

let y = 2nd integer

x = 3y + 17   {equation 1}

xy = -24         {equation 2}

substitute 3y+17 in place of x n equation 2

and solve for y.

(3y+17)y = -24

3y2 + 17y = -24

3y2 + 17y + 24 = 0

from quadratic equation:

y = [-17±√(172-4(3)(24))]/(2(3))

y = (-17 ±√1)/6

y = (-17+1)/6   or     y = (-17-1)/6

y = -16/6           or     y = -18/6

y = -2 2/3         or   y = -3

since we are dealing with

y = -3

x = 3y+17 = -9+17 = 8

the integers are -3, 8

step-by-step explanation: